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Filtering by: Academic Affiliation Botany and Plant Pathology Date issued sim 1967-08-07

Anatomical studies of Pinus ponderosa Laws : infested by Elytroderma deformans (Weir) Darker

Creator:

Wirtz, Felicia Pietrykowski

Abstract:

Pine needle blight of Pinus ponderosa Laws. caused by Elytroderma deformans (Weir) Darker is recognized by changes in the needles, in the bark and in the development of the branches. Anatomical studies of the host-parasite relation have been made previously on young pine tissue up to four years of age...

Resource Type:

Dissertation